Test more at the edges

Author: garydgregory

src/test/java/org/apache/commons/io/file/attribute/FileTimesTest.java

@@ -44,7 +44,9 @@ public static Stream<Arguments> fileTimeNanoUnitsToNtfsProvider() {
             Arguments.of("1601-01-01T00:00:00.0000001Z", 1),
             Arguments.of("1600-12-31T23:59:59.9999999Z", -1),
             Arguments.of("+30828-09-14T02:48:05.477580700Z", Long.MAX_VALUE),
+            Arguments.of("+30828-09-14T02:48:05.477580600Z", Long.MAX_VALUE - 1),
             Arguments.of("-27627-04-19T21:11:54.522419200Z", Long.MIN_VALUE),
+            Arguments.of("-27627-04-19T21:11:54.522419300Z", Long.MIN_VALUE + 1),
             Arguments.of("1601-01-01T00:00:00.0010000Z", FileTimes.HUNDRED_NANOS_PER_MILLISECOND),
             Arguments.of("1601-01-01T00:00:00.0010001Z", FileTimes.HUNDRED_NANOS_PER_MILLISECOND + 1),
             Arguments.of("1601-01-01T00:00:00.0009999Z", FileTimes.HUNDRED_NANOS_PER_MILLISECOND - 1),